F-22飛行速度對雷達(dá)探測性能的影響
發(fā)布時(shí)間:2019-02-28 21:32
【摘要】:針對隱身飛機(jī)飛行速度不同會影響雷達(dá)探測性能的問題,采用側(cè)站平飛模型對隱身飛機(jī)的空氣動(dòng)力學(xué)原理進(jìn)行了分析,推導(dǎo)雷達(dá)坐標(biāo)系與機(jī)體坐標(biāo)系之間的轉(zhuǎn)換矩陣進(jìn)行了視線姿態(tài)角的解算,進(jìn)而設(shè)定了航跡參數(shù)。結(jié)合F-22的全空域靜態(tài)RCS數(shù)據(jù)庫,仿真了三種飛行速度下動(dòng)態(tài)RCS的起伏變化量,并進(jìn)一步得到了歸一化雷達(dá)作用距離與檢測概率分別在時(shí)間序列上變化的仿真結(jié)果。分析結(jié)果表明:隱身飛機(jī)的飛行速度越快,防空雷達(dá)搜索和跟蹤目標(biāo)的難度將會增加,且在一定程度上降低了雷達(dá)的探測性能。
[Abstract]:In view of the problem that different flight speed of stealth aircraft will affect radar detection performance, the aerodynamics principle of stealth aircraft is analyzed by side station parallel flight model. The transformation matrix between radar coordinate system and airframe coordinate system is derived to calculate the line of sight and attitude angle, and then the track parameters are set. In this paper, the fluctuation of dynamic RCS at three flight speeds is simulated based on the static RCS database in the whole spatial domain, and the simulation results of the time series variation of the range and detection probability of the normalized radar are obtained. The analysis results show that the faster the flight speed of stealth aircraft, the more difficult it will be to search and track targets for air defense radar, and to a certain extent, the detection performance of radar will be reduced.
【作者單位】: 空軍工程大學(xué);
【分類號】:TN959
本文編號:2432189
[Abstract]:In view of the problem that different flight speed of stealth aircraft will affect radar detection performance, the aerodynamics principle of stealth aircraft is analyzed by side station parallel flight model. The transformation matrix between radar coordinate system and airframe coordinate system is derived to calculate the line of sight and attitude angle, and then the track parameters are set. In this paper, the fluctuation of dynamic RCS at three flight speeds is simulated based on the static RCS database in the whole spatial domain, and the simulation results of the time series variation of the range and detection probability of the normalized radar are obtained. The analysis results show that the faster the flight speed of stealth aircraft, the more difficult it will be to search and track targets for air defense radar, and to a certain extent, the detection performance of radar will be reduced.
【作者單位】: 空軍工程大學(xué);
【分類號】:TN959
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